I have a couple of MFSUs that were both emitting when full, that was turning on the refilling of a bank of generators. Now, one of them won't emit no matter what I set the redstone icon to do. I searched and I've tried a block update and that didn't work. Any ideas? *Edit* Oh it's working now, I think it started working when it had to output some EU briefly. Still... any ideas? It was keeping my refuelling system on for ages when it shouldn't have been.